Engine whip crackle
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6th Gear
Joined: Jul 2024
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From: Houston,Tx
Engine whip crackle
My 2004 Dyna Lowrider makes a whip crack sound when idle or cruising at 210rpm. At the very beginning, the Motorcycle would shut off as I was riding and turn back on immediately like nothing happened. Now it doesnt do that anymore and it just makes the whip crack and stutters. It nearly caused me to fall a couple of times as I take turns. I think this my have started since the day I jump-started the Motorcycle with a car.
Last edited by DenaliDyna; Jul 20, 2024 at 07:02 PM.
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From: poway
My 2004 Dyna Lowrider makes a whip crack sound when idle or cruising at 210rpm. At the very beginning, the Motorcycle would shut off as I was riding and turn back on immediately like nothing happened. Now it doesnt do that anymore and it just makes the whip crack and stutters. It nearly caused me to fall a couple of times as I take turns. I think this my have started since the day I jump-started the Motorcycle with a car.
RPMs are way too low..
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From: Honah Lee
Sure your talking 2100rpm. Check your charging voltage at 2000. Should be 14.3 DC, or so. No higher then 14.9. No lower then 13.8 or so.
Why did you jump it? A car won't hurt it. Issue is a bad bike battery jumped by anything and the bike charging system might get damaged by it trying to charge a bad bike battery.
A car running or off has the same voltage a bike has. It doesn't force voltage or amps at it. Yes running, it has 14 or so volts. That doesn't hurt the starting system..
However, only jump a bike in an real emergency. It's big bucks to repair just for the labor.
I am thinking your armature rotors may have lost a magnet before you jumped it. It can jam up and wreck you for sure. Or wreck the primary.
Now I am just making a wild stab at a 10:05 PM and I haven't had nearly as many shot of Don Julio as someone has?
PS..Welcome to the HDFORUM David. Only as a suggestion by me as a USER, make another new thread over in the newmember welcome area to say hello.
Why did you jump it? A car won't hurt it. Issue is a bad bike battery jumped by anything and the bike charging system might get damaged by it trying to charge a bad bike battery.
A car running or off has the same voltage a bike has. It doesn't force voltage or amps at it. Yes running, it has 14 or so volts. That doesn't hurt the starting system..
However, only jump a bike in an real emergency. It's big bucks to repair just for the labor.
I am thinking your armature rotors may have lost a magnet before you jumped it. It can jam up and wreck you for sure. Or wreck the primary.
Now I am just making a wild stab at a 10:05 PM and I haven't had nearly as many shot of Don Julio as someone has?
PS..Welcome to the HDFORUM David. Only as a suggestion by me as a USER, make another new thread over in the newmember welcome area to say hello.
Last edited by Jackie Paper; Jul 20, 2024 at 09:43 PM.
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Joined: Dec 2005
Posts: 19,896
Likes: 8,002
From: poway
Sure your talking 2100rpm. Check your charging voltage at 2000. Should be 14.3 DC, or so. No higher then 14.9. No lower then 13.8 or so.
Why did you jump it? A car won't hurt it. Issue is a bad bike battery jumped by anything and the bike charging system might get damaged by it trying to charge a bad bike battery.
A car running or off has the same voltage a bike has. It doesn't force voltage or amps at it. Yes running, it has 14 or so volts. That doesn't hurt the starting system..
However, only jump a bike in an real emergency. It's big bucks to repair just for the labor.
I am thinking your armature rotors may have lost a magnet before you jumped it. It can jam up and wreck you for sure. Or wreck the primary.
Now I am just making a wild stab at a 10:05 PM and I haven't had nearly as many shot of Don Julio as someone has?
PS..Welcome to the HDFORUM David. Only as a suggestion by me as a USER, make another new thread over in the newmember welcome area to say hello.
Why did you jump it? A car won't hurt it. Issue is a bad bike battery jumped by anything and the bike charging system might get damaged by it trying to charge a bad bike battery.
A car running or off has the same voltage a bike has. It doesn't force voltage or amps at it. Yes running, it has 14 or so volts. That doesn't hurt the starting system..
However, only jump a bike in an real emergency. It's big bucks to repair just for the labor.
I am thinking your armature rotors may have lost a magnet before you jumped it. It can jam up and wreck you for sure. Or wreck the primary.
Now I am just making a wild stab at a 10:05 PM and I haven't had nearly as many shot of Don Julio as someone has?
PS..Welcome to the HDFORUM David. Only as a suggestion by me as a USER, make another new thread over in the newmember welcome area to say hello.
Charging system won't get hurt but if the battery has a shorted cell it can trip the circuit breaker.
Who was shot by Don Julio?
Loose battery terminals?
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From: Honah Lee
Think a modern car will start and be normal with a bad battery with a shorted cell?
I am not sure about that one but it would seem to me that if the car had a bad battery, why would it running make any difference. You implying it would cause the alternator to throw out over 15 volts?
Now I have see an old GM car that kept taking out the electronic ignition. Internal alternator regulator was bad and it was throwing AC into the charging system.
Sure no modern DC system likes AC.
I am not sure about that one but it would seem to me that if the car had a bad battery, why would it running make any difference. You implying it would cause the alternator to throw out over 15 volts?
Now I have see an old GM car that kept taking out the electronic ignition. Internal alternator regulator was bad and it was throwing AC into the charging system.
Sure no modern DC system likes AC.
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Seasoned HDF Member
Joined: Dec 2005
Posts: 19,896
Likes: 8,002
From: poway
Think a modern car will start and be normal with a bad battery with a shorted cell?
I am not sure about that one but it would seem to me that if the car had a bad battery, why would it running make any difference. You implying it would cause the alternator to throw out over 15 volts?
Now I have see an old GM car that kept taking out the electronic ignition. Internal alternator regulator was bad and it was throwing AC into the charging system.
Sure no modern DC system likes AC.
I am not sure about that one but it would seem to me that if the car had a bad battery, why would it running make any difference. You implying it would cause the alternator to throw out over 15 volts?
Now I have see an old GM car that kept taking out the electronic ignition. Internal alternator regulator was bad and it was throwing AC into the charging system.
Sure no modern DC system likes AC.
A modern automotive system should be hardened from AC on DC. Early ones weren't. Older automotive alternators don't have internal regulators.
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Joined: Mar 2010
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From: Honah Lee
Told me to check for AC. Sure enough there was AC and a rebuild alternator from Autozone fixed the issue.
Guess one diode was leaking.
Last edited by Jackie Paper; Jul 21, 2024 at 09:05 AM.
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